JUDGING PAST EGG PRODUCTION HENS

EVALUATING PIGMENTATION OF THE SHANKS

Cover the top of the foot with your hand to hide any pigment that may be there. 

Some very good layers may never bleach this part of the foot. 

 

Start at the top of the shank and study the loss of pigment down the front toward the foot. 

The good layer has bleached this area of the shank.

 

Comparing pigmentation/bleaching of the shank:

The good layer has loss of pigment down the front of the shank toward the foot.

Good layer

Poor layer

 

Remember to consider the pigment loss over the entire shanks (front, back and sides).

 

The back of the shank of the good layer has bleached from the foot up to the hock. Look closely at the bottom of the shanks on the left. There is no pigment to be seen in the area up to the hock. On the right, the poor producer has yellow color at the bottom of the shank and on up to the hock.

Good layer

Poor layer

 

 

Note: Beginning in 1997, shank pigment loss was no longer divided into front and back of the shanks. Contestants should consider the entire shank as one in the same when comparing pigment loss.

 

Reason for the change: Commercial White Leghorns are showing variations in what order the shank looses pigment. Some strains of Leghorns actually lose the pigment in the back of the shank faster than the front of the shank. The change noted above is to help correct the rules of the contest to accommodate this change seen in the field.

 

 

BACK TO PIGMENTATION

 

BACK TO PAST EGG PRODUCTION

 

TO ORAL REASONS

 

BACK TO MAIN SHOW ME HOW MENU